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20 December, 15:17

The perimeter of a rectangle is 120 meters. If the length of the rectangle is 20 meters more than the width, what are the dimensions of the rectangle.

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  1. 20 December, 15:28
    0
    120 = 2 (w+20) + 2w

    120 = 2w+40+2w

    120 = 40+4w

    80=4w

    w=20

    Length:

    w+20

    20+20

    40

    Width: 20

    So the dimensions are:

    Length is 40

    Width is 20
  2. 20 December, 15:28
    0
    L+l+L+l=120

    L+l=60

    L=l+20 so l+20+l=60, 2l=40, l=20, L=40

    The dimensions are 20 wide, 40 long.
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